Re: gEDA-user: Levente Kovacs' grenum, back-annotation

[Dan McMahill <dan@xxxxxxxxxxxx>]

Frank Eory wrote:
> Hello,
> I was googling through the mailing list archives for back-annotation.
> I'd like some advice for two questions please. (well, the first one is
> more of a
> compound question...)
>
> 1. If I have a completed pcb  and wish to add/remove components in
> gschem, is there an easy way  to find  unused refdeses, or the highest
> refdes, or if I enter them manually can I use something to make sure I
> don't duplicate the refdeses of brand new components? How do I make
> sure when I run refdes_renum anf gsch2pcb, existing refdeses don't get
> moved around?

I think you have identified a weakness in the flow.  I think 
refdes_renum on a design where a bunch of layout has been done is 
probably asking for problems.  It probably would not be too hard to 
cause refdes_renum to write out a file listing the refdes renames (U3 -> 
U1) and skipping the "new numberings" (U? -> U2).  That could be used by 
pcb to rename already placed footprints.

> 2.Is there any documentation for refdes_renum and Levente Kovacs' grenum?

not sure about grenum.  For refdes_renum, try the --help flag.

-Dan